Home / 7,770.20-11,653.47-2,222.51

Finding the Fourth Proportional to 7,770.20, 11,653.47 and 2,222.51

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Solution

The fourth proportional to 7,770.20, 11,653.47 and 2,222.51 is: 3,333.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,770.20 : 11,653.47 = 2,222.51 : x
  2. Step 2: Convert to fraction form
    7,770.20/11,653.47 = 2,222.51/x
  3. Step 3: Cross multiply
    7,770.20x = 11,653.47 × 2,222.51
  4. Step 4: Simplify right side
    7,770.20x = 25,899,895.34
  5. Step 5: Solve for x
    x = 25,899,895.34/7,770.20
  6. Step 6: Final answer
    x = 3,333.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.